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Red Hat Linux Networking , System Administration (P1) ppt

... covered is the Red Hat Network, a subscription serviceavailable with Red Hat Enterprise Linux that you can use to keep your system current. You can register your systems with Red Hat and then ... mainframes. Linux in general, Fedora Core 4 and Red Hat Enterprise Linux in particular, are very powerful operating systemsthat can be used at the enterprise level as a full-fledged server. Linux ... Wewant to emphasize that this book is useful for users of Fedora Core, the opensource community–based Linux project supported by Red Hat, as well as usersof Red Hat Enterprise Linux. Prefaceix02_599496...

Red Hat Linux Networking , System Administration (P2) pot

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... the Red Hat Linux security mailing list? (Find it atwww.redhat.com/mailing-lists /linux- security/index.html.)Have you established a procedure that makes sure that every security updateis downloaded ... whatever came on the com-puter, assuming that things came properly configured from the factory. Theuser or enterprise that decides on Linux has decided, also, to assume the con-trol that Linux ... Luckily for you, Red Hat has created the Red Hat Network, a program intended to help keep your system updated with thelatest security updates.CROSS-REFERENCE Learn how to use the Red Hat Network...

Red Hat Linux Networking , System Administration (P3) potx

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... Red Hat boot disk starts your PC and the Red Hat Linux installationprogram. After you install Red Hat Linux, you no longer need the Red Hat boot disk (except when you want to reinstall Red Hat ... which operating systems to boot.In the center of the Boot Loader screen is a box that shows any operating systems, if there are any, that were detected on your system. The Red Hat Linux system ... installation section.Creating the Red Hat Boot DiskTo boot Red Hat Linux for the first time and start the Red Hat Linux installa-tion program, you need a Red Hat boot disk. For this step, you...

Red Hat Linux Networking , System Administration (P4) ppsx

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... the default operating system. Thedefault operating system is the one with a check mark in the Default columnin Figure 3-10. In this case, Red Hat Linux is the default operating system. All ... PC. Atable then liststhe Linux partition and any other partitions that may contain another operating system. If your system has a Linux partition and a DOS partition (that actuallyhas Windows ... ordeselect that package group.TIP In an actual Red Hat Linux installation, you install exactly those packagegroups that you need. Each package group requires specific packages to run.The Red Hat installation...

Red Hat Linux Networking , System Administration (P5) potx

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... cor-rect permissions.chmod u+w isolinux/*7. Create the ISO image file with this command. (The command should beentered on one line.)mkisofs -o file .iso -b isolinux.bin -c boot.cat -no-emul-boot ... created to the/isolinux directory on your hard drive at the location where you cre-ated it.cp /root/ks.cfg /tempdir/isolinux/5. Change to the temporary directory, cd /root/tempdir, that you created.6. ... the system volume, use the utility here.■■ System Settings — This menu item contains Enterprise Linux system administration utilities and some GNOME configuration utilities as well.■■ System...

Red Hat Linux Networking , System Administration (P6) ppt

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... atthe file system structure are the file system commands, essential to proper file system management. In addition to the native Linux file system, Fedora Coreand Red Hat Enterprise Linux support ... Configuration All Red Hat systems, whether Fedora Core or Enterprise Linux, use a similarprocedure for starting up the operating system. As the system boots, the oper-ating system loads programs ... system administrator or other users. The bin directory cannot contain subdirectories.■■ boot — On Red Hat systems, this is the directory containing the ker-nel, the core of the operating system. ...

Red Hat Linux Networking , System Administration (P7) pps

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... Enterprise Linux providesupport for many file systems. Linux supports those from other operating sys-tems, remote file systems, memory file systems, CD-ROM file systems, virtualfile systems, ... handy since it reduces system administrationtime. This is a fast file system, and now you can read and write to and from itwith your Red Hat Linux machine. Nonstandard Linux File SystemsSupport ... more important system configuration files on your Red Hat system. Systemwide Shell Configuration ScriptsThese files determine the default environment settings of system shells andwhat functions...

Red Hat Linux Networking , System Administration (P8) ppsx

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... directory should be edited by hand. For more informa-tion on Red Hat Network, see the Red Hat Network Web site at https://rhn.redhat.com.Examining the Network Configuration FilesThis section ... /etc/sysconfigdirectoryFiles to Change When Setting Up a System or Moving the System Whenever you set up a system to work on a new network, either because you’vejust installed Red Hat or you’re moving the machine from ... use it. APM is a monitoring daemon that works with power man-agement code within the Linux kernel. It can alert you to a low battery if youare using Red Hat Linux on a laptop, among other things.Figure...

Red Hat Linux Networking , System Administration (P9) ppsx

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... Window System 20915_599496 ch09.qxd 8/30/05 6:23 PM Page 209 205This chapter introduces you to the X Window system that is used to provide agraphical user interface (GUI) to the operating system. ... printer attached to a different UNIX sys-tem that can be accessed over a TCP/IP network (for example, a printerattached to another Red Hat Linux system on your network). If youchoose this type ... Managing the X Window System 211file that was created during system installation. A description of the section ofthe file follows the file.# XFree86 4 configuration created by redhat-config-xfree86Section...

Red Hat Linux Networking , System Administration (P11) ppt

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... and Red Hat Enterprise Linux systems, the /etc/exportsfile is the main NFS configuration file. It lists the file systems the serverexports, the systems permitted to mount the exported file systems, ... in Red Hat Linux) .rw Exports the file system read-write, permitting operationsthat change the file system. secure Requires client requests to originate from a secure(privileged) port, that ... hide an exported file system that is asubdirectory of another exported file system. ro Exports the file system read-only, disabling any operationthat changes the file system. root_squash Maps...

Red Hat Linux Networking , System Administration (P12) ppsx

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... uniquename that refers to any group of systems that use the same NIS maps. NISdomains function as system management tools providing a convenient methodto organize groups of systems that need to ... well-run system, IPaddresses can change, whereas a hostname won’t. If DNS is properlyconfigured and maintained, the hostname will always point to the proper system regardless of what that system s ... NISNIS distributes information that needs to be shared throughout a Linux net-work to all machines that participate in the NIS domain. Originally developedby Sun Microsystems, NIS was first known...

Red Hat Linux Networking , System Administration (P13) pot

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... Novell NetworksWith Red Hat Enterprise Linux, you can easily configure your system to con-nect to Novell Netware servers. In this section, you learn how to configureyour Red Hat system to be a Novell ... also able to use the printers configured with the Red Hat system. Connecting to a Samba ClientIn this section, you learn how to connect your system to other systems runningthe SMB protocol. Connecting ... about a Linux program called Samba, which emulates the SMBprotocol and can be used to connect Linux networks to Windows networks.You installed and configured Samba on a Red Hat Enterprise Linux...

Red Hat Linux Networking , System Administration (P14) pps

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... for your needs.In addition, the versions of PostgreSQL and MySQL that ship in Fedora Core and Red Hat Enterprise Linux lag somewhat behind the current stable versions ofthose products. At the ... a remote user full control over that system. More suc-cinctly, VPN makes a remote system part of the main network; VNC gives aremote user control over one system on the main network.For more ... remotely. So, ifyou’re at home and want to connect to the Linux system on your desk at work,the system at work is the server; the system at home is the VNC client. Figure16-1 illustrates this...

Red Hat Linux Networking , System Administration (P15) ppsx

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... cut by a backhoe,say), access to that time server will be impaired. NTP is engineered to select analternative server, but if all your servers use that same severed backbone,you’re hosed. So, ... modify your system s firewallsetup (you are running a firewall, right?).1. To start the Security Level Configuration tool, select Red Hat ➪ System Settings ➪ Security Level or type system- config-securitylevelat ... network interfaceeth0 (-i eth0) that are destined for port 80 ( dport 80). The modificationthat occurs is that packets going to port 80 are redirected (-j REDIRECT) to port3128 ( to-port 3128),...

Red Hat Linux Networking , System Administration (P16) ppsx

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... and Linux system security, see Chapter 34.iptables is Fedora’s and Red Hat s built-in IP firewall administration tool.Using iptables enables you to run a personal firewall to protect your Linux machine. ... Linux machinesversatile workhorses that can fulfill many different functions in a company’snetwork. This chapter covers the wide range of common services that comestandard with every Red Hat ... important program that has been around for several years.It incorporates new features that have been desired by system administratorsfor a few years now.xinetd starts at system boot time, and...